Ruby in zoisite (anyolite) is Tanzania’s natural color-block: opaque ruby crystals embedded in vivid green zoisite, often punctuated by black hornblende — red, green and black composed by the Earth itself. A superb carving and cabochon material.Each ruby-in-zoisite at GEMIC Institute is natural, certified in our Siem Reap laboratory and photographed exactly as sold. Unique compositions; worldwide tracked shipping with a 30-day return period.